The English User Guide for the Cinnamon edition is the authoritative one. Throughout the years users have helped update it, rework it for other editions and translate it. The major parts of it apply to all editions. Nobody has taken the time to rework if for the differences between the Cinnamon and Xfce editions. Should anybody be so inclined, you can find the sources of the User Guides at the end of the page you linked to.

Flemur I did see that but as it said Cinnamon I assumed there must have been a different one somewhere for xfce.
It appears there isn't - and that the Cinnamon one should be more than adequate for 99% of stuff (and probably 100% of stuff I'm likely to need)